1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.contacts.preference;
18
19import android.app.AlertDialog.Builder;
20import android.content.Context;
21import android.preference.ListPreference;
22import android.util.AttributeSet;
23
24import com.android.contacts.R;
25
26/**
27 * Custom preference: view-name-as (first name first or last name first).
28 */
29public final class DisplayOrderPreference extends ListPreference {
30
31    private ContactsPreferences mPreferences;
32    private Context mContext;
33
34    public DisplayOrderPreference(Context context) {
35        super(context);
36        prepare();
37    }
38
39    public DisplayOrderPreference(Context context, AttributeSet attrs) {
40        super(context, attrs);
41        prepare();
42    }
43
44    private void prepare() {
45        mContext = getContext();
46        mPreferences = new ContactsPreferences(mContext);
47        setEntries(new String[]{
48                mContext.getString(R.string.display_options_view_given_name_first),
49                mContext.getString(R.string.display_options_view_family_name_first),
50        });
51        setEntryValues(new String[]{
52                String.valueOf(ContactsPreferences.DISPLAY_ORDER_PRIMARY),
53                String.valueOf(ContactsPreferences.DISPLAY_ORDER_ALTERNATIVE),
54        });
55        setValue(String.valueOf(mPreferences.getDisplayOrder()));
56    }
57
58    @Override
59    protected boolean shouldPersist() {
60        return false;   // This preference takes care of its own storage
61    }
62
63    @Override
64    public CharSequence getSummary() {
65        switch (mPreferences.getDisplayOrder()) {
66            case ContactsPreferences.DISPLAY_ORDER_PRIMARY:
67                return mContext.getString(R.string.display_options_view_given_name_first);
68            case ContactsPreferences.DISPLAY_ORDER_ALTERNATIVE:
69                return mContext.getString(R.string.display_options_view_family_name_first);
70        }
71        return null;
72    }
73
74    @Override
75    protected boolean persistString(String value) {
76        int newValue = Integer.parseInt(value);
77        if (newValue != mPreferences.getDisplayOrder()) {
78            mPreferences.setDisplayOrder(newValue);
79            notifyChanged();
80        }
81        return true;
82    }
83
84    @Override
85    // UX recommendation is not to show cancel button on such lists.
86    protected void onPrepareDialogBuilder(Builder builder) {
87        super.onPrepareDialogBuilder(builder);
88        builder.setNegativeButton(null, null);
89    }
90}
91